Home / 1,487.90-2,052.64-1,046.09

Finding the Fourth Proportional to 1,487.90, 2,052.64 and 1,046.09

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Solution

The fourth proportional to 1,487.90, 2,052.64 and 1,046.09 is: 1,443.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.90 : 2,052.64 = 1,046.09 : x
  2. Step 2: Convert to fraction form
    1,487.90/2,052.64 = 1,046.09/x
  3. Step 3: Cross multiply
    1,487.90x = 2,052.64 × 1,046.09
  4. Step 4: Simplify right side
    1,487.90x = 2,147,246.18
  5. Step 5: Solve for x
    x = 2,147,246.18/1,487.90
  6. Step 6: Final answer
    x = 1,443.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.